Optical range finder



FIG. 1 is a perspective view of an optical range finder showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is the opposite side view of FIG. 3 thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for an optical range finder, as shown and described. 